CN111624780A - Collimator structure, display device and manufacturing method of display device - Google Patents
Collimator structure, display device and manufacturing method of display device Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
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Abstract
The invention relates to a collimator structure, a display device and a manufacturing method of the display device. The display device comprises a collimator structure, wherein the collimator structure comprises a glass substrate, a plurality of collimating transparent columns and a coating layer; the plurality of collimation transparent columns are arranged on the surface of one side of the glass substrate and are used for realizing the action of a collimator after exposure; the coating layer is filled in the gap of the collimation transparent column and is connected with the surface of the glass substrate. The invention digs the light transmission holes on the black matrix of the color film layer in the upper area corresponding to the fingerprint sensor, and exposes the collimation transparent column made of the material with high depth-to-width ratio in the light transmission hole area to form the collimator, thereby being compatible with the panel manufacturing process, realizing better collimation effect and realizing the acquisition of fingerprint signals on the basis of not influencing the display.
Description
Technical Field
The invention relates to the technical field of display, in particular to a collimator structure, a display device and a manufacturing method of the display device.
Background
Along with the improvement of the whole process design capability of the mobile phone, the aesthetic appearance of consumers is also continuously guided and improved. Therefore, the mobile phone screen is gradually converted into a full screen design direction from the previous diversified design. Therefore, the design capability and the process capability of the overall screen related indexes in the display screens such as a flexible circuit board (COF), a super-narrow frame, a Liuhai screen (Notch) and the like are continuously improved within less than one year, and the screen occupation ratio is gradually improved from 80% to 97%. And wherein fingerprint identification's in the screen research is particularly hot, and it is direct with the fingerprint module integrated to the screen in, improved the screen to account for than greatly.
At present, a plurality of schemes are provided in the liquid crystal display screen, including pinholes, lenses, collimation and the like, wherein the pinhole scheme has extremely poor imaging quality because the interference of a display light source cannot be avoided; in the lens scheme, the curvature of the lens cannot be guaranteed due to the manufacturing process problem of the micro lens (Microlens), and in comparison, the collimation scheme is an ideal scheme without excessive condition limitation, only enough depth-to-width ratio needs to be guaranteed, and high alignment precision is not needed.
However, the collimating holes of the conventional collimating scheme are about 20um, the precision problem is difficult to implement in the liquid crystal display screen, and the depth-to-width ratio of the photoresist commonly used in a panel factory is very small, so that the requirements of the collimator are difficult to meet.
Disclosure of Invention
The invention aims to provide a collimator structure, a display device and a manufacturing method of the display device, which are used for solving the technical problems that the depth-to-width ratio of the existing photoresist is very small and the requirements of the collimator are difficult to meet.
In order to achieve the above object, the present invention provides a collimator structure, including a glass substrate, a plurality of collimating transparent pillars, and a coating layer; the plurality of collimation transparent columns are arranged on the surface of one side of the glass substrate and are used for realizing the action of a collimator after exposure; the coating layer is filled in the gap of the collimation transparent column and is connected with the surface of the glass substrate.
Further, the aspect ratio of the collimating transparent pillar ranges from 5: 1 to 10: 1.
furthermore, the material of the collimating transparent column comprises SU-8 photoresist or 2, 4-dinitrophenol; the coating layer is made of black matrix color resistance or ABS resin.
Further, the height of the straight transparent columns ranges from 12um to 18 um; the range of the diameter of the straight transparent column is 2um to 5 um.
The invention also provides a display device comprising the collimator structure.
Further, the display device further comprises a plurality of fingerprint sensors, one end of the collimation transparent column is connected with the glass substrate, and the other end of the collimation transparent column is connected with the fingerprint sensors.
Further, the display device also comprises an array substrate and a liquid crystal layer; the array substrate is arranged opposite to the glass substrate; the fingerprint sensor is arranged on one side of the array substrate, which faces the glass substrate; the liquid crystal layer is filled between the array substrate and the glass substrate.
Further, the display device also comprises a color film layer; the color film layer is arranged on one side, facing the array substrate, of the collimation transparent column and comprises a black matrix, a plurality of light holes are formed in the black matrix, and each light hole corresponds to each collimation transparent column.
Further, the thickness of the coating layer is smaller than the length of the collimation transparent column, and the collimation transparent column penetrates through the light hole and the liquid crystal layer to be abutted to a fingerprint sensor.
The invention also provides a manufacturing method of the display device, which comprises the following steps:
manufacturing a plurality of collimation transparent columns on the surface of one side of a glass substrate, wherein the collimation transparent columns are used for realizing the action of a collimator after exposure, and filling a coating layer in gaps of the collimation transparent columns on the surface of one side of the collimation transparent columns arranged on the glass substrate to form a collimator structure;
manufacturing a color film layer on one side of the glass substrate, which is provided with the collimation transparent columns, wherein the color film layer comprises a black matrix, the black matrix is provided with a plurality of light holes, and each light hole is arranged corresponding to each collimation transparent column;
providing an array substrate, and arranging the array substrate opposite to the glass substrate; manufacturing a plurality of fingerprint sensors on one side of the array substrate facing the glass substrate, wherein each fingerprint sensor is arranged corresponding to each collimating transparent column; and
and connecting the array substrate with the glass substrate, and filling liquid crystal between the array substrate and the glass substrate to manufacture a liquid crystal layer.
The invention has the advantages that the collimator structure, the display device and the manufacturing method of the display device are provided, the light transmission holes are dug in the upper area corresponding to the fingerprint sensor for the black matrix of the color film layer, and the collimator is formed in the light transmission hole area through exposure of the collimating transparent columns made of the material with the high depth-to-width ratio, so that the panel manufacturing process is compatible, the good collimating effect is realized, and the fingerprint signal acquisition is realized on the basis of not influencing the display.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a collimator construction according to an embodiment of the invention;
FIG. 2 is a schematic plan view of a collimator structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a partial structure of the collimator structure shown in FIG. 1, which mainly embodies the principle of the collimator;
FIG. 4 is a schematic structural diagram of a display device according to an embodiment of the invention;
fig. 5 is a schematic plan view of the color film layer according to the embodiment of the invention;
fig. 6 is a schematic structural view of the collimating transparent pillar disposed on the glass substrate according to the embodiment of the present invention.
The numbers in the figures are as follows:
1. glass substrate, 2, collimation transparent column, 3, coating layer, 10, collimator structure, 20, fingerprint sensor, 30, array substrate, 40, liquid crystal layer, 50, color film layer, 51, black matrix, 52, color resistance layer, 100, display device, 511, light hole, 512 and pixel unit.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 and 2, the present invention provides a collimator structure 10, which includes a glass substrate 1, a plurality of collimating transparent pillars 2, and a coating layer 3; the plurality of collimating transparent columns 2 are arranged on the surface of one side of the glass substrate 1 in an array manner and are used for realizing the action of a collimator after exposure; the coating layer 3 is filled in the gap of the collimating transparent column 2, is connected with the surface of the glass substrate 1, and plays a role in filling and connecting.
In this embodiment, the depth-to-width ratio of the collimating transparent pillar 2 ranges from 5: 1 to 10: 1, preferably 6: 1. the aspect ratio is the ratio of the length or width of an object, i.e. a structure, to its depth.
Referring to fig. 1 and fig. 3, the principle of the collimator structure 10 implementing the collimator is as follows: the light receiving angle of the collimator structure 10 and the thickness of the display module have a positive correlation mapping relationship, for example, when the thickness range of the transparent cover plate and the light-emitting display screen after being superposed is 0.9-1.3 mm, as shown in fig. 3, the light receiving angle α of the collimator structure 10 ranges from 6 ° to 8 °. The light transmissive region may be a hole, a groove, or a light transmissive material. In this embodiment, the collimating transparent pillar 2 is used as a light transmitting area, and the aspect ratio of the collimating transparent pillar 2, that is, the ratio of the height to the diameter, is a certain value, so that the collimating function with high performance can be realized, and generally, the aspect ratio of the collimating transparent pillar 2 is 6: 1 is preferred. If the diameter of the collimating transparent pillar 2 can only be 3um at the minimum, the height of the hole needs 18um to achieve the collimating effect, which is influenced by the precision of the manufacturing equipment.
In this embodiment, the material of the collimating transparent pillar 2 includes SU-8 photoresist or 2, 4-Dinitrophenol (DNP). The SU-8 photoresist is a negative, epoxy resin type, near ultraviolet photoresist, it is suitable for making the micro-electromechanical system microstructure with super-thick, high aspect ratio, the shape of SU-8 photoresist is a standard cylinder. The 2, 4-dinitrophenol material is columnar, but the diameter of the middle of the material is larger than the diameters of the upper bottom and the lower bottom, and the diameter of the middle of the material is 51um, the diameter of the upper bottom is 44um, the diameter of the lower bottom is 45um and the height is 50um through measurement. The support columns (PS) made of the conventional photoresist are flat columns, and the diameter of the upper bottom is larger than that of the lower bottom. Therefore, the depth-to-width ratio of the collimating transparent column 2 made of SU-8 photoresist or 2, 4-dinitrophenol is higher than that of the existing photoresist, and the requirement of the collimator can be better met.
In this embodiment, the material of the coating layer 3 includes black matrix color resistance or ABS resin. The ABS resin is an Acrylonitrile-Butadiene-Styrene copolymer, and the ABS is an acronym of Acrylonitrile Butadiene Styrene, and is a thermoplastic high polymer material which has high strength, good toughness and easy processing and molding.
In this embodiment, the height of the straight transparent columns ranges from 12um to 18 um; the diameter of the straight transparent column ranges from 2um to 5um, preferably 3 um.
Referring to fig. 4, the present invention further provides a display device 100 including the collimator structure 10.
The display device 100 in this embodiment may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In this embodiment, the display device 100 further includes a plurality of fingerprint sensors 20, one end of the collimating transparent pillar 2 is connected to the glass substrate 1, and the other end thereof is connected to the fingerprint sensors 20.
In this embodiment, the display device 100 further includes an array substrate 30 and a liquid crystal layer 40; the array substrate 30 is arranged opposite to the glass substrate 1; the fingerprint sensor 20 is arranged on one side of the array substrate 30 facing the glass substrate 1; the liquid crystal layer 40 is filled between the array substrate 30 and the glass substrate 1.
Referring to fig. 4 and 5, in the present embodiment, the display device 100 further includes a color film layer 50; color film layer 50 is located the transparent post of collimation 2 orientation one side of array substrate 30, color film layer 50 includes Black Matrix (BM)51, be equipped with a plurality of light trap 511 on the black matrix 51, each light trap 511 corresponds the setting with the transparent post 2 of each collimation, and the light of being convenient for is followed light trap 511 passes the entering in the transparent post 2 of collimation.
Referring to fig. 5, in the present embodiment, the color film layer 50 further includes a color resist layer 52; the color resist layer 52 includes a plurality of pixel units 521, and each pixel unit 512 includes three sub-pixels arranged side by side, which are respectively one or more of a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. The light hole 511 is one or more of rectangular, circular and polygonal.
In this embodiment, the thickness of the coating layer 3 is smaller than the length of the collimating transparent pillar 2, and the collimating transparent pillar 2 passes through the light hole 511 and the liquid crystal layer 40 to abut against a fingerprint sensor 20. Due to the extension of the collimator, the collimator passes through the liquid crystal layer 40, and the support function of the support column can be replaced to a certain extent, thereby reducing the support column process. And the collimating transparent pillar 2 acts as a collimator so that the light entering the fingerprint sensor 20 is increased, increasing the aperture ratio of the collimator structure 10.
The present embodiment further provides a manufacturing method of the display device 100, which includes steps S1-S4.
S1, manufacturing a collimator structure 10, wherein the collimator structure 10 comprises a glass substrate 1, a plurality of collimating transparent columns 2 and a coating layer 3; specifically, a plurality of collimating transparent columns 2 are manufactured on one side surface of a glass substrate 1, the collimating transparent columns 2 are used for realizing the collimator effect after exposure, and a coating layer 3 is filled in gaps of the collimating transparent columns 2 on the side surface of the collimating transparent columns 2 arranged on the glass substrate 1 to form a collimator structure 10. The plurality of collimating transparent columns 2 are arranged on the surface of one side of the glass substrate 1 in an array manner and are used for realizing the action of a collimator after exposure; the coating layer 3 is filled in the gap of the collimating transparent column 2, is connected with the surface of the glass substrate 1, and plays a role in filling and connecting. Specifically, a plurality of the alignment transparent columns 2 are formed on the upper surface of a glass substrate 1, and preferably, the alignment transparent columns 2 are arranged in an array, as shown in fig. 6; the material of the collimating transparent column 2 comprises SU-8 photoresist or 2, 4-Dinitrophenol (DNP), and the depth-to-width ratio of the collimating transparent column 2 is in the range of 5: 1 to 10: 1, preferably 6: 1; as shown in fig. 1, a coating layer 3 is filled in the gap of the upper surface of the glass substrate 1 facing the collimating transparent pillar 2, and the material of the coating layer 3 includes black matrix color resist or ABS resin.
S2, manufacturing a color film layer 50 on the side of the glass substrate 1 where the collimating transparent pillars 2 are disposed, as shown in fig. 5, where the color film layer 50 includes a black matrix 51, the black matrix 51 is provided with a plurality of light holes 511, and each light hole 511 corresponds to one end of each collimating transparent pillar 2 departing from the glass substrate 1. The color film layer 50 further includes a color resist layer 52, the color resist layer 52 includes a plurality of pixel units 512, each pixel unit 512 includes three sub-pixels arranged side by side, which are respectively one or more of a red sub-pixel, a green sub-pixel, and a blue sub-pixel. The light hole 511 is one or more of rectangular, circular and polygonal.
S3, providing an array substrate 30, disposing opposite to the glass substrate 1, and fabricating a plurality of fingerprint sensors 20 on a side of the array substrate 30 facing the glass substrate 1, as shown in fig. 4, where each fingerprint sensor 20 is disposed corresponding to each collimating transparent pillar 2.
And S4, connecting the array substrate 30 and the glass substrate 1, and filling liquid crystal between the array substrate 30 and the glass substrate 1 to manufacture the liquid crystal layer 40. As the collimator principle does not need very accurate alignment, the alignment accuracy of the liquid crystal box completely meets the requirement, and the liquid crystal box formed after the alignment is shown in figure 4; due to the extension of the collimator, the collimator penetrates through the liquid crystal layer 40, and the support function of the support Pillar (PS) can be replaced to a certain extent, that is, the thickness of the coating layer 3 is smaller than the length of the collimating transparent pillar 2, and the collimating transparent pillar 2 penetrates through the light hole 511 and the liquid crystal layer 40 to abut against a fingerprint sensor 20, so that the support pillar processing steps can be reduced. And the collimating transparent pillar 2 acts as a collimator so that the light entering the fingerprint sensor 20 is increased, increasing the aperture ratio of the collimator structure 10.
The invention has the advantages that the collimator structure 10 and the display device 100 are provided, the transparent holes 511 are dug in the black matrix 51 of the color film layer 50 in the upper area corresponding to the fingerprint sensor 20, the collimator is formed by exposing the transparent columns 2 made of the material with the high depth-to-width ratio in the transparent hole 511 area, the panel manufacturing process is compatible, the good collimation effect is realized, and the fingerprint signal acquisition is realized on the basis of not influencing the display.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A collimator structure, comprising:
a glass substrate;
the plurality of collimating transparent columns are arranged on the surface of one side of the glass substrate and are used for realizing the action of a collimator after exposure; and
and the coating layer is filled in the gap of the collimation transparent column and is connected with the surface of the glass substrate.
2. The collimator structure of claim 1 wherein the collimating transparent pillar has an aspect ratio in the range of 5: 1 to 10: 1.
3. the collimator structure of claim 1, wherein the material of the collimating transparent pillar comprises SU-8 photoresist or 2, 4-dinitrophenol; the coating layer is made of black matrix color resistance or ABS resin.
4. The collimator structure of claim 1 wherein the height of the straight transparent pillars ranges from 12um to 18 um; the range of the diameter of the straight transparent column is 2um to 5 um.
5. A display device comprising a collimator construction according to any one of claims 1-4.
6. The display device of claim 5, further comprising:
and one end of the collimation transparent column is connected with the glass substrate, and the other end of the collimation transparent column is connected with the fingerprint sensor.
7. The display device of claim 6, further comprising:
the array substrate is arranged opposite to the glass substrate; the fingerprint sensor is arranged on one side of the array substrate, which faces the glass substrate; and
and the liquid crystal layer is filled between the array substrate and the glass substrate.
8. The display device of claim 7, further comprising:
the color film layer is arranged on one side of the array substrate, the collimation transparent columns face the array substrate, the color film layer comprises a black matrix, a plurality of light holes are formed in the black matrix, and each light hole corresponds to each collimation transparent column.
9. The display device of claim 8, wherein the coating has a thickness less than a length of the collimating transparent pillar, the collimating transparent pillar abutting a fingerprint sensor through the light aperture and the liquid crystal layer.
10. A method for manufacturing a display device, comprising the steps of:
manufacturing a plurality of collimation transparent columns on the surface of one side of a glass substrate, wherein the collimation transparent columns are used for realizing the action of a collimator after exposure, and filling a coating layer in gaps of the collimation transparent columns on the surface of one side of the collimation transparent columns arranged on the glass substrate to form a collimator structure;
manufacturing a color film layer on one side of the glass substrate, which is provided with the collimation transparent columns, wherein the color film layer comprises a black matrix, the black matrix is provided with a plurality of light holes, and each light hole is arranged corresponding to each collimation transparent column;
providing an array substrate, and arranging the array substrate opposite to the glass substrate; manufacturing a plurality of fingerprint sensors on one side of the array substrate facing the glass substrate, wherein each fingerprint sensor is arranged corresponding to each collimating transparent column; and
and connecting the array substrate with the glass substrate, and filling liquid crystal between the array substrate and the glass substrate to manufacture a liquid crystal layer.
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